This illustration from the 1914 Hankin and Watson paper shows
the general arrangement of skeletal bones in Pteranodon ingens. This
arrangement is typical of most pterodactyloid pterosaurs, large and small.

The bones that typically survive as fossils are the long bones,
wing joints, vertebrae and skull and jaw fragments. Pterosaur bones were
very light and thin, and are only well preserved in a few special locations.
Many remains are fragmentary and difficult to classify.